Troubleshooting laptop display issue

There could be a number of reasons why your laptop's display is not working properly. Here are some things you can try to troubleshoot the issue:

1. Check the power cord and make sure it is securely plugged into the laptop and the wall outlet.
2. Check the battery and make sure it is charged.
3. Try connecting an external monitor to the laptop. If the external monitor works, then the issue may be with the laptop's display or display cable. If the external monitor does not work, the problem may be with the laptop's graphics card or motherboard.
4. Restart the laptop and see if that resolves the issue.
5. If the above steps don't help, try booting the laptop into Safe Mode and see if the issue persists. If the issue does not occur in Safe Mode, it may be caused by a problem with a driver or software.
6. If you are comfortable with hardware handling, check the internal display connection. Refer to https://www.mwolk.com/articles/4-how-to-fix-laptop-display-issue-caused-by-loose-cable for more details.
7. If the issue still persists, you may need to take the laptop to a professional repair shop for further diagnostics. They will be able to determine the cause of the issue and recommend the appropriate course of action.